BS EN 10089:2002 – Hot rolled steels for quenched and tempered springs — Technical delivery conditions
1 Scope
1.1 This European Standard specifies the technical delivery requirements for round and flat bars, ribbed and grooved bars and rod manufactured from the alloy steels listed in Table 3, intended for hot-formed and subsequently heat-treated springs or cold-formed and subsequently heat-treated springs. The products are supplied in one of the heat-treatment conditions given for the different types of products in Table 1, lines 2 to 6, and in one of the surface conditions given in Table 2.
1.2 In special cases, variations in these technical delivery requirements or additions to them may form the subject of an agreement at the time of enquiry and order (see annex A).
1.3 In addition to the specifications of this European Standard, the general technical delivery requirements of EN 10021 are applicable.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).
EN 10020, Definition and classification of grades of steel.
EN 10021, General technical delivery requirements for steel and iron products.
EN 10027-1, Designation systems for steel — Part 1: Steel names, principal symbols.
EN 10027-2, Designation systems for steel — Part 2: Numerical system.
EN 10052, Vocabulary of heat treatment terms for ferrous products.
EN 10079, Definition of steel products.
EN 10204, Metallic products — Types of inspection documents.
EN 10221, Surface quality classes for hot-rolled bars and rods — Technical delivery conditions.
EN ISO 377, Steel and steel products — Location and preparation of samples and test pieces for mechanical testing (ISO 377:1997).
EN ISO 642, Steel — Hardenability test by end quenching (Jominy test) (ISO 642:1999).
EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1:1999).
EN ISO 6508-1, Metallic materials — Rockwell hardness test – Part 1: Test method (scales A, B, C, D, E, F, G, H,K, N, T)(ISO 6508-1:1999).
EN ISO 14284, Steel and iron — Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996)
CR 10260, Designation systems for steels — Additional symbols.
CR 10261, ECISS Information Circular 11 – Iron and steel — Review of available methods of chemical analysis.
BS EN 10089:2002 – Hot rolled steels for quenched and tempered springs — Technical delivery conditions